Searching \ for '[EE]: Piezo buzzers having a bubble bath' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/index.htm?key=piezo+buzzers+having
Search entire site for: 'Piezo buzzers having a bubble bath'.

Exact match. Not showing close matches.
PICList Thread
'[EE]: Piezo buzzers having a bubble bath'
2002\08\02@205118 by Pic Dude

flavicon
face
So I ordered/received 2 piezo buzzers recently and they have a
sticker covering the hole in the center that says "Remove seal
after washing".

What does this mean?  Am I supposed to give these things
a bubble bath or put them in the laundry or something?

Cheers,
-Neil.

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.


2002\08\02@210449 by Bob Barr

flavicon
face
On Fri, 2 Aug 2002 19:48:24 -0500, Pic Dude wrote:

>So I ordered/received 2 piezo buzzers recently and they have a
>sticker covering the hole in the center that says "Remove seal
>after washing".
>
>What does this mean?  Am I supposed to give these things
>a bubble bath or put them in the laundry or something?
>

No specific washing of the piezos is required. These seals prevent
damage after production assembly where boards may be washed to remove
flux residue.
If you wash the boards without the seals on, they can be damaged. If
you don't remove the seals, the piezos will be really, really quiet.
:-)


Regards, Bob

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.


2002\08\02@210654 by Brendan Moran

flavicon
face
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

> So I ordered/received 2 piezo buzzers recently and they have a
> sticker covering the hole in the center that says "Remove seal
> after washing".
>
> What does this mean?  Am I supposed to give these things
> a bubble bath or put them in the laundry or something?

That is a reference to the assembly process.  In many assembly
houses, water souluble flux is used.  The principle here is that if
one of these buzzers were to be mounted to a PCA, then after it went
through the circuit board washing machine (No, I'm not kidding, I've
worked with one) you would peel the sticker off.

- --Brendan

-----BEGIN PGP SIGNATURE-----
Version: PGPfreeware 6.5.8 for non-commercial use <http://www.pgp.com>

iQA/AwUBPUssOgVk8xtQuK+BEQIpigCgs2kVcZJBPX/lufvixU/RCAaAjxkAoPa0
kJRkpzJEFmXQ0j+TGOTeUu8W
=2ObL
-----END PGP SIGNATURE-----

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.


2002\08\02@210717 by Alexandre Souza

flavicon
face
> So I ordered/received 2 piezo buzzers recently and they have a
> sticker covering the hole in the center that says "Remove seal
> after washing".
> What does this mean?  Am I supposed to give these things
> a bubble bath or put them in the laundry or something?

       When you build a circuit in an assembly line, is usual to solder and
after give it a bath of flux cleaner/remover. The sticker isolates
the internal cavity of the buzzer, so you have to remove it after
mounting/washing.

       Hope it helps

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.


2002\08\02@210858 by Dwayne Reid

flavicon
face
At 07:48 PM 8/2/02 -0500, Pic Dude wrote:
>So I ordered/received 2 piezo buzzers recently and they have a
>sticker covering the hole in the center that says "Remove seal
>after washing".
>
>What does this mean?  Am I supposed to give these things
>a bubble bath or put them in the laundry or something?

Close!  If you use water soluble flux for soldering, you wash the boards in
water to remove the flux.  Its a neat thing to see for the first time - the
flux turns to soap bubbles!  When all the bubbles are gone, the flux has
all been removed and you dry the boards.

We use a modified dishwasher to do ours . . .

The sticker is there so that the soapy water does not get inside the buzzer.

dwayne

--
Dwayne Reid   <spam_OUTdwaynerTakeThisOuTspamplanet.eon.net>
Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
(780) 489-3199 voice          (780) 487-6397 fax

Celebrating 18 years of Engineering Innovation (1984 - 2002)
 .-.   .-.   .-.   .-.   .-.   .-.   .-.   .-.   .-.   .-
    `-'   `-'   `-'   `-'   `-'   `-'   `-'   `-'   `-'
Do NOT send unsolicited commercial email to this email address.
This message neither grants consent to receive unsolicited
commercial email nor is intended to solicit commercial email.

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.


2002\08\02@211107 by Tony Goetz

picon face

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.


2002\08\02@211312 by Tony Goetz

picon face
sorry for those blank e-mails. I was having some computer problems and
somehow ended up sending 2 replies with nothing in them. didn't mean to waste
your bandwidth!

-Tony

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.


2002\08\03@004317 by Pic Dude

flavicon
face
Thanks for all the replies.  It all makes sense now.

I guess I can go drain the tub and put back the bubble
bath and bath salts now, huh? :-)

Cheers,
-Neil.

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email .....listservKILLspamspam@spam@mitvma.mit.edu with SET PICList DIGEST in the body


2002\08\03@010432 by Jinx

face picon face
> Thanks for all the replies.  It all makes sense now.

Perhaps someone can do a similar explanation for
relays and switches. Relays sometimes have a label
that says something like "Do not break tab off before
cleaning", and the tab covers a hole in the relay case.
Why would you want or need air getting to relay and
switch mechanisms ?

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listservspamKILLspammitvma.mit.edu with SET PICList DIGEST in the body


2002\08\03@085637 by Olin Lathrop

face picon face
> So I ordered/received 2 piezo buzzers recently and they have a
> sticker covering the hole in the center that says "Remove seal
> after washing".
>
> What does this mean?  Am I supposed to give these things
> a bubble bath or put them in the laundry or something?

They are probably referring to the wash or rinse cycle applied to production
boards after soldering.


*****************************************************************
Embed Inc, embedded system specialists in Littleton Massachusetts
(978) 742-9014, http://www.embedinc.com

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email .....listservKILLspamspam.....mitvma.mit.edu with SET PICList DIGEST in the body


2002\08\03@135529 by Peter L. Peres

picon face
On Fri, 2 Aug 2002, Pic Dude wrote:

>So I ordered/received 2 piezo buzzers recently and they have a
>sticker covering the hole in the center that says "Remove seal
>after washing".
>
>What does this mean?  Am I supposed to give these things
>a bubble bath or put them in the laundry or something?

The stickers are for use in automated assembly lines where boards are
washed of flux after soldering. For you it means do not pour aynthing
liquid into the hole at any time (esp. not water). Some open construction
potentiometers and switches also have similar seals.

Peter

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email EraseMElistservspam_OUTspamTakeThisOuTmitvma.mit.edu with SET PICList DIGEST in the body


2002\08\03@152414 by Dwayne Reid

flavicon
face
At 05:03 PM 8/3/02 +1200, Jinx wrote:

>Perhaps someone can do a similar explanation for
>relays and switches. Relays sometimes have a label
>that says something like "Do not break tab off before
>cleaning", and the tab covers a hole in the relay case.
>Why would you want or need air getting to relay and
>switch mechanisms ?

As far as I know, it is to eliminate pressure within the relay case that
would otherwise occur as the relay gets hot.

dwayne

--
Dwayne Reid   <dwaynerspamspam_OUTplanet.eon.net>
Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
(780) 489-3199 voice          (780) 487-6397 fax

Celebrating 18 years of Engineering Innovation (1984 - 2002)
 .-.   .-.   .-.   .-.   .-.   .-.   .-.   .-.   .-.   .-
    `-'   `-'   `-'   `-'   `-'   `-'   `-'   `-'   `-'
Do NOT send unsolicited commercial email to this email address.
This message neither grants consent to receive unsolicited
commercial email nor is intended to solicit commercial email.

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email @spam@listservKILLspamspammitvma.mit.edu with SET PICList DIGEST in the body


2002\08\03@153126 by Spehro Pefhany

picon face
At 05:03 PM 8/3/02 +1200, you wrote:
> > Thanks for all the replies.  It all makes sense now.
>
>Perhaps someone can do a similar explanation for
>relays and switches. Relays sometimes have a label
>that says something like "Do not break tab off before
>cleaning", and the tab covers a hole in the relay case.
>Why would you want or need air getting to relay and
>switch mechanisms ?

There are gases and metal vapors produced by the contacts when they
switch, particularly power and/or inductive loads at high voltage.

Taking the tab off or snipping the plastic vent will increase the
lifetime of the relay in those cases. OTOH, if the environment
has contaminants in it such as powder, then the life may be
reduced. For switching low currents, it probably doesn't matter
much.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
KILLspamspeffKILLspamspaminterlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
9/11 United we Stand

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email RemoveMElistservTakeThisOuTspammitvma.mit.edu with SET PICList DIGEST in the body


2002\08\05@120854 by Harold M Hallikainen

picon face
On Fri, 2 Aug 2002 19:48:24 -0500 Pic Dude <spamBeGonepicdudespamBeGonespamPILOTTOOLS.COM>
writes:
> So I ordered/received 2 piezo buzzers recently and they have a
> sticker covering the hole in the center that says "Remove seal
> after washing".
>
> What does this mean?  Am I supposed to give these things
> a bubble bath or put them in the laundry or something?
>

       We wash our boards after dip soldering. Unsealing the piezo before
washing results in a gurgling sound when the piezo runs.

Harold



FCC Rules Online at http://hallikainen.com/FccRules
Lighting control for theatre and television at http://www.dovesystems.com

Reach broadcasters, engineers, manufacturers, compliance labs, and
attorneys.
Advertise at http://www.hallikainen.com/FccRules/ .


________________________________________________________________
GET INTERNET ACCESS FROM JUNO!
Juno offers FREE or PREMIUM Internet access for less!
Join Juno today!  For your FREE software, visit:
dl.http://www.juno.com/get/web/.

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads


More... (looser matching)
- Last day of these posts
- In 2002 , 2003 only
- Today
- New search...